Heat pumps
By: Steve Denner and Ted Haskell.
Contributors: Haskell, Ted.
Series: Extension bulletin -- 0952.; Extension bulletin (Washington State University. Cooperative Extension) -- 952.
Publisher: Cooperative Extension, College of Agriculture, Washington State University
Published: 1981
Place of publication: Pullman, [Wash.]
Language: eng
Subjects: Heat pumps
Notes: Caption title.

"August 1981"--P. [7]